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The Dawn Topography Investigation

Raymond, C.A. and Jaumann, R. and Nathues, A. and Sierks, H. and Roatsch, T. and Preusker, Frank and Scholten, F. and Gaskell, R.W. and Jorda, L. and Keller, H.-U. and Zuber, M.T. and Smith, D.E. and Mastrodemos, N. and Mottola, S. (2011) The Dawn Topography Investigation. Space Science Reviews, 163 (1-4), pp. 487-510. Springer. doi: 10.1007/s11214-011-9863-z.

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Official URL: http://www.springerlink.com/content/600874p84wm81h11/


The objective of the Dawn topography investigation is to derive the detailed shapes of 4 Vesta and 1 Ceres in order to create orthorectified image mosaics for geologic interpretation, as well as to study the asteroids� landforms, interior structure, and the processes that have modified their surfaces over geologic time. In this paper we describe our approaches for producing shape models, plans for acquiring the needed image data for Vesta, and the results of a numerical simulation of the Vesta mapping campaign that quantify the expected accuracy of our results. Multi-angle images obtained by Dawn�s framing camera will be used to create topographic models with 100 m/pixel horizontal resolution and 10 m height accuracy at Vesta, and 200 m/pixel horizontal resolution and 20 m height accuracy at Ceres. Two different techniques, stereophotogrammetry and stereophotoclinometry, are employed to model the shape; these models will be merged with the asteroidal gravity fields obtained by Dawn to produce geodetically controlled topographic models for each body. The resulting digital topography models, together with the gravity data, will reveal the tectonic, volcanic and impact history of Vesta, and enable co-registration of data sets to determine Vesta�s geologic history. At Ceres, the topography will likely reveal much about processes of surface modification as well as the internal structure and evolution of this dwarf planet.

Item URL in elib:https://elib.dlr.de/73850/
Document Type:Article
Title:The Dawn Topography Investigation
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Raymond, C.A.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109-8099, USAUNSPECIFIED
Jaumann, R.ralf.jaumann (at) dlr.deUNSPECIFIED
Nathues, A.Max-Planck-Institut für Sonnensystemforschung, Katlenburg-Lindau, GermanyUNSPECIFIED
Sierks, H.Max-Planck-Institut für Sonnensystemforschung, Katlenburg-Lindau, GermanyUNSPECIFIED
Roatsch, T.thomas.roatsch (at) dlr.deUNSPECIFIED
Preusker, Frankfrank.preusker (at) dlr.deUNSPECIFIED
Scholten, F.frank.scholten (at) dlr.deUNSPECIFIED
Gaskell, R.W.Planetary Science Institute, Tucson, AZ, USAUNSPECIFIED
Jorda, L.Laboratoire d’Astrophysique de Marseille, Marseille, FranceUNSPECIFIED
Keller, H.-U.Dept. of Earth Sciences, Remote Sensing of the Earth and Planets, Freie Universität Berlin, Berlin, GermanyUNSPECIFIED
Zuber, M.T.Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139-4307, USAUNSPECIFIED
Smith, D.E.Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USAUNSPECIFIED
Mastrodemos, N.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109-8099, USAUNSPECIFIED
Mottola, S.stefano.mottola (at) dlr.deUNSPECIFIED
Journal or Publication Title:Space Science Reviews
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1007/s11214-011-9863-z
Page Range:pp. 487-510
Keywords:Vesta � Ceres � Dawn � Asteroid topography
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Projekt DAWN (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research
Deposited By: Pieth, Susanne
Deposited On:11 Jan 2012 09:39
Last Modified:01 Dec 2018 19:48

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